diff --git a/src/app_sweep.cpp b/src/app_sweep.cpp
index 8c81ca3..0182343 100644
--- a/src/app_sweep.cpp
+++ b/src/app_sweep.cpp
@@ -354,6 +354,38 @@ void App::buildSweepCatalog()
                 ui::WalletsDialog::show(&a);
             },
             [](App&) { ui::WalletsDialog::hide(); });
+
+        // Many wallets — exercises the viewport-cap path: the card can't fit all rows, so the list
+        // must scroll internally while the create/scan/footer controls stay pinned (esp. at 150%).
+        // Teardown removes the extra files it dropped so the plain modal-wallets surface stays a
+        // clean 3-wallet reference (both surfaces share the one throwaway datadir).
+        static const char* kManyExtra[] = {"wallet-cold.dat", "wallet-trading.dat", "wallet-mining.dat",
+                                           "wallet-donations.dat", "wallet-2023.dat", "wallet-payroll.dat"};
+        add("modal-wallets-many", ui::NavPage::Settings,
+            [](App& a) {
+                std::error_code ec;
+                const std::string dd = util::Platform::getDragonXDataDir();
+                fs::create_directories(dd, ec);
+                const char* names[] = {"wallet.dat", "wallet-savings.dat", "wallet-cold.dat",
+                                       "wallet-trading.dat", "wallet-mining.dat", "wallet-donations.dat",
+                                       "wallet-2023.dat", "wallet-payroll.dat"};
+                for (int i = 0; i < 8; ++i) {
+                    if (!fs::exists(dd + "/" + names[i], ec))
+                        std::ofstream(dd + "/" + names[i], std::ios::binary) << std::string(64000 + i * 4096, '\0');
+                    data::WalletIndexEntry e; e.fileName = names[i]; e.displayName = names[i];
+                    e.cachedBalance = 5.0 * (i + 1); e.cachedAddressCount = 2 + i;
+                    e.lastOpenedEpoch = 1720000000 - i * 86400; e.syncedHere = true;
+                    a.walletIndex().upsert(e);
+                }
+                if (a.settings()) a.settings()->setActiveWalletFile("wallet.dat");
+                ui::WalletsDialog::show(&a);
+            },
+            [](App& a) {
+                ui::WalletsDialog::hide();
+                std::error_code ec;
+                const std::string dd = util::Platform::getDragonXDataDir();
+                for (const char* n : kManyExtra) fs::remove(dd + "/" + n, ec);
+            });
     }
 
     // First-run wizard — one per meaningful phase (full-node only; blocks all other UI while shown).
diff --git a/src/ui/windows/wallets_dialog.h b/src/ui/windows/wallets_dialog.h
index d6b79ec..118c62e 100644
--- a/src/ui/windows/wallets_dialog.h
+++ b/src/ui/windows/wallets_dialog.h
@@ -81,7 +81,14 @@ public:
         const float headH   = Type().h6()->LegacySize + Layout::spacingXs()      // framework h6 title
                             + Type().caption()->LegacySize + Layout::spacingSm();  // intro + gap
         const float padV    = 48.0f;                                             // content-child padding (top+bottom) + margin
-        const float cardH   = (headH + listH + belowH + padV) / dp;
+        // Size to content, but cap at a viewport fraction: with many wallets on a small / HiDPI
+        // screen the content-sized card could exceed the window (the framework would clip a too-tall
+        // card, footer and all). When capped, the wallet list flexes + scrolls and the controls
+        // below it stay pinned. In the common case (few wallets) nothing changes.
+        const float desiredH = headH + listH + belowH + padV;                    // physical
+        const float vpH      = ImGui::GetMainViewport()->Size.y;
+        const bool  capped   = desiredH > vpH * 0.86f;
+        const float cardH    = std::min(desiredH, vpH * 0.86f) / dp;
 
         OverlayDialogSpec ov;
         ov.title      = TR("wallets_title");
@@ -98,8 +105,13 @@ public:
 
             // ---- Wallet cards (Material-style rows; no table) -------------------------------------
             const float listW = ImGui::GetContentRegionAvail().x;
+            // Flex only when the card was viewport-capped: give the list the space left above the
+            // create/scan/footer controls so it scrolls internally and those stay visible. Uncapped,
+            // it equals the content height exactly (no spurious scrollbar — the common case).
+            float listHFit = listH;
+            if (capped) listHFit = std::max(walRowH, ImGui::GetContentRegionAvail().y - belowH);
             ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0, 0));
-            ImGui::BeginChild("##walletList", ImVec2(listW, listH), false);
+            ImGui::BeginChild("##walletList", ImVec2(listW, listHFit), false);
             ImGui::PopStyleVar();
             ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0, 0));   // inter-card gaps are explicit
             ImDrawList* dl = ImGui::GetWindowDrawList();